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Finding the Fourth Proportional to 1,090.41, 1,635.62 and 542.04

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Solution

The fourth proportional to 1,090.41, 1,635.62 and 542.04 is: 813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.41 : 1,635.62 = 542.04 : x
  2. Step 2: Convert to fraction form
    1,090.41/1,635.62 = 542.04/x
  3. Step 3: Cross multiply
    1,090.41x = 1,635.62 × 542.04
  4. Step 4: Simplify right side
    1,090.41x = 886,568.75
  5. Step 5: Solve for x
    x = 886,568.75/1,090.41
  6. Step 6: Final answer
    x = 813.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.